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Online Edition: "Specifications for Flavourings"

Flavouring Diethyl tartrate
Synonym(s) Diethyl 2,3-dihydroxysuccinate;Ethyl tartrate
Latest JECFA evaluation 2002 (Session 59)
Status of specification Full
Chemical name Diethyl 2,3-dihydroxybutanediaote
JECFA number 622
CAS number 87-91-2
FEMA number 2378
COE number 440
FLAVIS number
Molecular weight 206.19
Chemical formula C8H14O6
Physical form/odour colourless viscous liquid with very faint winey odour
Solubility slightly soluble to insoluble in water; miscible in oil and alcohol
Solubility in ethanol
Boiling point (°C) 280-281°; 153° (12 mm Hg)
Assay min % 97%
Acid value max
Refractive index 1.443-1.449
Specific gravity 1.203-1.210 (20°)
Other requirements
ID Test IR